From e4a0ad2a53a2f839d94e2187656af9685eebe5d5 Mon Sep 17 00:00:00 2001
From: Daniel Padrino <danswarrior1@gmail.com>
Date: Thu, 15 Feb 2024 21:06:33 -0300
Subject: [PATCH] Simple Earn module

---
 .../simpleEarn/getCollateralRecord.test.js    |  28 +
 .../getFlexiblePersonalLeftQuota.test.js      |  28 +
 .../simpleEarn/getFlexibleProductList.test.js |  28 +
 .../getFlexibleProductPosition.test.js        |  29 +
 .../getFlexibleRedemptionRecord.test.js       |  29 +
 .../getFlexibleRewardsRecord.test.js          |  30 +
 .../getFlexibleSubscriptionPreview.test.js    |  36 ++
 .../getFlexibleSubscriptionRecord.test.js     |  29 +
 .../getLockedPersonalLeftQuota.test.js        |  28 +
 .../simpleEarn/getLockedProductList.test.js   |  28 +
 .../getLockedProductPosition.test.js          |  29 +
 .../getLockedRedemptionRecord.test.js         |  29 +
 .../simpleEarn/getLockedRewardsRecord.test.js |  29 +
 .../getLockedSubscriptionPreview.test.js      |  36 ++
 .../getLockedSubscriptionRecord.test.js       |  29 +
 .../spot/simpleEarn/getRateHistory.test.js    |  28 +
 .../spot/simpleEarn/getSimpleAccount.test.js  |  26 +
 .../simpleEarn/redeemFlexibleProduct.test.js  |  28 +
 .../simpleEarn/redeemLockedProduct.test.js    |  28 +
 .../setFlexibleAutoSubscribe.test.js          |  36 ++
 .../simpleEarn/setLockedAutoSubscribe.test.js |  36 ++
 .../subscribeFlexibleProduct.test.js          |  36 ++
 .../simpleEarn/subscribeLockedProduct.test.js |  36 ++
 src/modules/restful/index.js                  |   1 +
 src/modules/restful/simpleEarn.js             | 545 ++++++++++++++++++
 25 files changed, 1245 insertions(+)
 create mode 100644 __tests__/spot/simpleEarn/getCollateralRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexiblePersonalLeftQuota.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleProductList.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleProductPosition.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleRedemptionRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleRewardsRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleSubscriptionPreview.test.js
 create mode 100644 __tests__/spot/simpleEarn/getFlexibleSubscriptionRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedPersonalLeftQuota.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedProductList.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedProductPosition.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedRedemptionRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedRewardsRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedSubscriptionPreview.test.js
 create mode 100644 __tests__/spot/simpleEarn/getLockedSubscriptionRecord.test.js
 create mode 100644 __tests__/spot/simpleEarn/getRateHistory.test.js
 create mode 100644 __tests__/spot/simpleEarn/getSimpleAccount.test.js
 create mode 100644 __tests__/spot/simpleEarn/redeemFlexibleProduct.test.js
 create mode 100644 __tests__/spot/simpleEarn/redeemLockedProduct.test.js
 create mode 100644 __tests__/spot/simpleEarn/setFlexibleAutoSubscribe.test.js
 create mode 100644 __tests__/spot/simpleEarn/setLockedAutoSubscribe.test.js
 create mode 100644 __tests__/spot/simpleEarn/subscribeFlexibleProduct.test.js
 create mode 100644 __tests__/spot/simpleEarn/subscribeLockedProduct.test.js
 create mode 100644 src/modules/restful/simpleEarn.js

diff --git a/__tests__/spot/simpleEarn/getCollateralRecord.test.js b/__tests__/spot/simpleEarn/getCollateralRecord.test.js
new file mode 100644
index 0000000..a8f325e
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getCollateralRecord.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#getCollateralRecord', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getCollateralRecord('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe locked product', () => {
+    const parameters = {
+      productId
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/history/collateralRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getCollateralRecord(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexiblePersonalLeftQuota.test.js b/__tests__/spot/simpleEarn/getFlexiblePersonalLeftQuota.test.js
new file mode 100644
index 0000000..7e740f4
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexiblePersonalLeftQuota.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#getFlexiblePersonalLeftQuota', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getFlexiblePersonalLeftQuota('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should redeem flexible product', () => {
+    const parameters = {
+      productId
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/personalLeftQuota?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.getFlexiblePersonalLeftQuota(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleProductList.test.js b/__tests__/spot/simpleEarn/getFlexibleProductList.test.js
new file mode 100644
index 0000000..c340033
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleProductList.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getFlexibleProductList', () => {
+  it('should return flexible product list', () => {
+    nockMock('/sapi/v1/simple-earn/flexible/list')(mockResponse)
+
+    return SpotClient.getFlexibleProductList().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return flexible product list with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/list?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getFlexibleProductList(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleProductPosition.test.js b/__tests__/spot/simpleEarn/getFlexibleProductPosition.test.js
new file mode 100644
index 0000000..2e78696
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleProductPosition.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getFlexibleProductPosition', () => {
+  it('should return flexible product position', () => {
+    nockMock('/sapi/v1/simple-earn/flexible/position')(mockResponse)
+
+    return SpotClient.getFlexibleProductPosition().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return flexible product position with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      productId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/position?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getFlexibleProductPosition(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleRedemptionRecord.test.js b/__tests__/spot/simpleEarn/getFlexibleRedemptionRecord.test.js
new file mode 100644
index 0000000..a064a29
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleRedemptionRecord.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getFlexibleRedemptionRecord', () => {
+  it('should return flexible redemption records', () => {
+    nockMock('/sapi/v1/simple-earn/flexible/history/redemptionRecord')(mockResponse)
+
+    return SpotClient.getFlexibleRedemptionRecord().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return flexible redemption records with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      productId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/history/redemptionRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getFlexibleRedemptionRecord(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleRewardsRecord.test.js b/__tests__/spot/simpleEarn/getFlexibleRewardsRecord.test.js
new file mode 100644
index 0000000..117cb11
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleRewardsRecord.test.js
@@ -0,0 +1,30 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+const MissingParameterError = require('../../../src/error/missingParameterError')
+
+const type = 'FLEXIBLE'
+
+describe('#getFlexibleRewardsRecord', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getFlexibleRewardsRecord('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+
+  it('should return locked records history with params', () => {
+    const parameters = {
+      type,
+      productId: '1',
+      asset: 'USDT'
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/history/rewardsRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getFlexibleRewardsRecord(type, parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleSubscriptionPreview.test.js b/__tests__/spot/simpleEarn/getFlexibleSubscriptionPreview.test.js
new file mode 100644
index 0000000..3def1ae
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleSubscriptionPreview.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const amount = 10
+
+describe('#getFlexibleSubscriptionPreview', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getFlexibleSubscriptionPreview('', amount)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing amount', () => {
+      expect(() => {
+        SpotClient.getFlexibleSubscriptionPreview(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe locked product', () => {
+    const parameters = {
+      productId,
+      amount
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/subscriptionPreview?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.getFlexibleSubscriptionPreview(productId, amount).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getFlexibleSubscriptionRecord.test.js b/__tests__/spot/simpleEarn/getFlexibleSubscriptionRecord.test.js
new file mode 100644
index 0000000..1edbac7
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getFlexibleSubscriptionRecord.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getFlexibleSubscriptionRecord', () => {
+  it('should return flexible subscription records', () => {
+    nockMock('/sapi/v1/simple-earn/flexible/history/subscriptionRecord')(mockResponse)
+
+    return SpotClient.getFlexibleSubscriptionRecord().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return flexible subscription records with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      purchaseId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/history/subscriptionRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getFlexibleSubscriptionRecord(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedPersonalLeftQuota.test.js b/__tests__/spot/simpleEarn/getLockedPersonalLeftQuota.test.js
new file mode 100644
index 0000000..ed17e8a
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedPersonalLeftQuota.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#getLockedPersonalLeftQuota', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getLockedPersonalLeftQuota('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should redeem flexible product', () => {
+    const parameters = {
+      productId
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/personalLeftQuota?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.getLockedPersonalLeftQuota(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedProductList.test.js b/__tests__/spot/simpleEarn/getLockedProductList.test.js
new file mode 100644
index 0000000..4251382
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedProductList.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getLockedProductList', () => {
+  it('should return locked product list', () => {
+    nockMock('/sapi/v1/simple-earn/locked/list')(mockResponse)
+
+    return SpotClient.getLockedProductList().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return locked product list with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/list?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getLockedProductList(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedProductPosition.test.js b/__tests__/spot/simpleEarn/getLockedProductPosition.test.js
new file mode 100644
index 0000000..fded184
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedProductPosition.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getLockedProductPosition', () => {
+  it('should return locked product position', () => {
+    nockMock('/sapi/v1/simple-earn/locked/position')(mockResponse)
+
+    return SpotClient.getLockedProductPosition().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return locked product position with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      productId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/position?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getLockedProductPosition(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedRedemptionRecord.test.js b/__tests__/spot/simpleEarn/getLockedRedemptionRecord.test.js
new file mode 100644
index 0000000..53e6f71
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedRedemptionRecord.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getLockedRedemptionRecord', () => {
+  it('should return locked redemption records', () => {
+    nockMock('/sapi/v1/simple-earn/locked/history/redemptionRecord')(mockResponse)
+
+    return SpotClient.getLockedRedemptionRecord().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return locked redemption records with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      productId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/history/redemptionRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getLockedRedemptionRecord(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedRewardsRecord.test.js b/__tests__/spot/simpleEarn/getLockedRewardsRecord.test.js
new file mode 100644
index 0000000..30dff36
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedRewardsRecord.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getLockedRewardsRecord', () => {
+  it('should return locked records history', () => {
+    nockMock('/sapi/v1/simple-earn/locked/history/rewardsRecord')(mockResponse)
+
+    return SpotClient.getLockedRewardsRecord().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return locked records history with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      positionId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/history/rewardsRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getLockedRewardsRecord(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedSubscriptionPreview.test.js b/__tests__/spot/simpleEarn/getLockedSubscriptionPreview.test.js
new file mode 100644
index 0000000..22e5e97
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedSubscriptionPreview.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const amount = 10
+
+describe('#getLockedSubscriptionPreview', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getLockedSubscriptionPreview('', amount)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing amount', () => {
+      expect(() => {
+        SpotClient.getLockedSubscriptionPreview(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe locked product', () => {
+    const parameters = {
+      productId,
+      amount
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/subscriptionPreview?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.getLockedSubscriptionPreview(productId, amount).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getLockedSubscriptionRecord.test.js b/__tests__/spot/simpleEarn/getLockedSubscriptionRecord.test.js
new file mode 100644
index 0000000..85537d3
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getLockedSubscriptionRecord.test.js
@@ -0,0 +1,29 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getLockedSubscriptionRecord', () => {
+  it('should return locked subscription records', () => {
+    nockMock('/sapi/v1/simple-earn/locked/history/subscriptionRecord')(mockResponse)
+
+    return SpotClient.getLockedSubscriptionRecord().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return locked subscription records with params', () => {
+    const parameters = {
+      asset: 'USDT',
+      purchaseId: '1',
+      current: 5,
+      size: 10
+    }
+    nockMock(`/sapi/v1/simple-earn/locked/history/subscriptionRecord?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getLockedSubscriptionRecord(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getRateHistory.test.js b/__tests__/spot/simpleEarn/getRateHistory.test.js
new file mode 100644
index 0000000..4cbdabf
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getRateHistory.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#getRateHistory', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.getRateHistory('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe locked product', () => {
+    const parameters = {
+      productId
+    }
+    nockMock(`/sapi/v1/simple-earn/flexible/history/rateHistory?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getRateHistory(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/getSimpleAccount.test.js b/__tests__/spot/simpleEarn/getSimpleAccount.test.js
new file mode 100644
index 0000000..f4f093e
--- /dev/null
+++ b/__tests__/spot/simpleEarn/getSimpleAccount.test.js
@@ -0,0 +1,26 @@
+/* global describe, it, expect */
+const { nockMock, SpotClient, buildQueryString } = require('../../testUtils/testSetup')
+const { mockResponse } = require('../../testUtils/mockData')
+
+describe('#getSimpleAccount', () => {
+  it('should return simple account details', () => {
+    nockMock('/sapi/v1/simple-earn/account')(mockResponse)
+
+    return SpotClient.getSimpleAccount().then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+
+  it('should return simple account details with params', () => {
+    const parameters = {
+      recvWindow: 1000
+    }
+    nockMock(`/sapi/v1/simple-earn/account?${buildQueryString(parameters)}`)(mockResponse)
+
+    return SpotClient.getSimpleAccount(parameters).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/redeemFlexibleProduct.test.js b/__tests__/spot/simpleEarn/redeemFlexibleProduct.test.js
new file mode 100644
index 0000000..e2c0a76
--- /dev/null
+++ b/__tests__/spot/simpleEarn/redeemFlexibleProduct.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#redeemFlexibleProduct', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.redeemFlexibleProduct('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should redeem flexible product', () => {
+    const parameters = {
+      productId
+    }
+    nockPostMock(`/sapi/v1/simple-earn/flexible/redeem?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.redeemFlexibleProduct(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/redeemLockedProduct.test.js b/__tests__/spot/simpleEarn/redeemLockedProduct.test.js
new file mode 100644
index 0000000..b4db459
--- /dev/null
+++ b/__tests__/spot/simpleEarn/redeemLockedProduct.test.js
@@ -0,0 +1,28 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+
+describe('#redeemFlexibleProduct', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.redeemFlexibleProduct('')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe flexible product', () => {
+    const parameters = {
+      productId
+    }
+    nockPostMock(`/sapi/v1/simple-earn/flexible/redeem?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.redeemFlexibleProduct(productId).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/setFlexibleAutoSubscribe.test.js b/__tests__/spot/simpleEarn/setFlexibleAutoSubscribe.test.js
new file mode 100644
index 0000000..31757ba
--- /dev/null
+++ b/__tests__/spot/simpleEarn/setFlexibleAutoSubscribe.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const autoSubscribe = true
+
+describe('#setFlexibleAutoSubscribe', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.setFlexibleAutoSubscribe('', autoSubscribe)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing autoSubscribe', () => {
+      expect(() => {
+        SpotClient.setFlexibleAutoSubscribe(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe flexible product', () => {
+    const parameters = {
+      productId,
+      autoSubscribe
+    }
+    nockPostMock(`/sapi/v1/simple-earn/flexible/setAutoSubscribe?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.setFlexibleAutoSubscribe(productId, autoSubscribe).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/setLockedAutoSubscribe.test.js b/__tests__/spot/simpleEarn/setLockedAutoSubscribe.test.js
new file mode 100644
index 0000000..decea8d
--- /dev/null
+++ b/__tests__/spot/simpleEarn/setLockedAutoSubscribe.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const autoSubscribe = true
+
+describe('#setLockedAutoSubscribe', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.setLockedAutoSubscribe('', autoSubscribe)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing autoSubscribe', () => {
+      expect(() => {
+        SpotClient.setLockedAutoSubscribe(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe flexible product', () => {
+    const parameters = {
+      productId,
+      autoSubscribe
+    }
+    nockPostMock(`/sapi/v1/simple-earn/locked/setAutoSubscribe?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.setLockedAutoSubscribe(productId, autoSubscribe).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/subscribeFlexibleProduct.test.js b/__tests__/spot/simpleEarn/subscribeFlexibleProduct.test.js
new file mode 100644
index 0000000..fd420fd
--- /dev/null
+++ b/__tests__/spot/simpleEarn/subscribeFlexibleProduct.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const amount = 10
+
+describe('#subscribeFlexibleProduct', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.subscribeFlexibleProduct('', amount)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing amount', () => {
+      expect(() => {
+        SpotClient.subscribeFlexibleProduct(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe flexible product', () => {
+    const parameters = {
+      productId,
+      amount
+    }
+    nockPostMock(`/sapi/v1/simple-earn/flexible/subscribe?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.subscribeFlexibleProduct(productId, amount).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/__tests__/spot/simpleEarn/subscribeLockedProduct.test.js b/__tests__/spot/simpleEarn/subscribeLockedProduct.test.js
new file mode 100644
index 0000000..a1c2e18
--- /dev/null
+++ b/__tests__/spot/simpleEarn/subscribeLockedProduct.test.js
@@ -0,0 +1,36 @@
+/* global describe, it, expect */
+const MissingParameterError = require('../../../src/error/missingParameterError')
+const { nockPostMock, buildQueryString, SpotClient } = require('../../testUtils/testSetup')
+
+const { mockResponse } = require('../../testUtils/mockData')
+
+const productId = '1'
+const amount = 10
+
+describe('#subscribeLockedProduct', () => {
+  describe('throw MissingParameterError', () => {
+    it('missing productId', () => {
+      expect(() => {
+        SpotClient.subscribeLockedProduct('', amount)
+      }).toThrow(MissingParameterError)
+    })
+
+    it('missing amount', () => {
+      expect(() => {
+        SpotClient.subscribeLockedProduct(productId, '')
+      }).toThrow(MissingParameterError)
+    })
+  })
+  it('should suscribe locked product', () => {
+    const parameters = {
+      productId,
+      amount
+    }
+    nockPostMock(`/sapi/v1/simple-earn/locked/subscribe?${buildQueryString({ ...parameters })}`)(mockResponse)
+
+    return SpotClient.subscribeLockedProduct(productId, amount).then(response => {
+      expect(response).toBeDefined()
+      expect(response.data).toEqual(mockResponse)
+    })
+  })
+})
diff --git a/src/modules/restful/index.js b/src/modules/restful/index.js
index aa17535..64de468 100644
--- a/src/modules/restful/index.js
+++ b/src/modules/restful/index.js
@@ -19,3 +19,4 @@ module.exports.Rebate = require('./rebate')
 module.exports.NFT = require('./nft')
 module.exports.GiftCard = require('./giftCard')
 module.exports.PortfolioMargin = require('./portfolioMargin')
+module.exports.SimpleEarn = require('./simpleEarn')
diff --git a/src/modules/restful/simpleEarn.js b/src/modules/restful/simpleEarn.js
new file mode 100644
index 0000000..3e057f7
--- /dev/null
+++ b/src/modules/restful/simpleEarn.js
@@ -0,0 +1,545 @@
+'use strict'
+
+const { validateRequiredParameters } = require('../../helpers/validation')
+
+/**
+ * API Simple Earn endpoints
+ * @module SimpleEarn
+ * @param {*} superclass
+ */
+const SimpleEarn = superclass => class extends superclass {
+  /**
+   * Get Simple Earn Flexible Product List (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/list<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-simple-earn-flexible-product-list-user_data}
+   *
+   * @param {object} [options]
+   * @param {string} [options.asset]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleProductList (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/list',
+      options
+    )
+  }
+
+  /**
+   * Get Simple Earn Locked Product List (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/list<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-simple-earn-locked-product-list-user_data}
+   *
+   * @param {object} [options]
+   * @param {string} [options.asset]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedProductList (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/list',
+      options
+    )
+  }
+
+  /**
+   * Subscribe Flexible Product (TRADE)<br>
+   *
+   * POST /sapi/v1/simple-earn/flexible/subscribe<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-simple-earn-locked-product-list-user_data}
+   *
+   * @param {string} productId
+   * @param {number} amount
+   * @param {object} options
+   * @param {boolean} [options.autoSubscribe]
+   * @param {string} [options.sourceAccount]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  subscribeFlexibleProduct (productId, amount, options = {}) {
+    validateRequiredParameters({ productId, amount })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/flexible/subscribe',
+      Object.assign(options, { productId, amount })
+    )
+  }
+
+  /**
+   * Subscribe Locked Product (TRADE)<br>
+   *
+   * POST /sapi/v1/simple-earn/locked/subscribe<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#subscribe-locked-product-trade}
+   *
+   * @param {string} productId
+   * @param {number} amount
+   * @param {object} options
+   * @param {boolean} [options.autoSubscribe]
+   * @param {string} [options.sourceAccount]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  subscribeLockedProduct (productId, amount, options = {}) {
+    validateRequiredParameters({ productId, amount })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/locked/subscribe',
+      Object.assign(options, { productId, amount })
+    )
+  }
+
+  /**
+   * Redeem Flexible Product (TRADE)<br>
+   *
+   * POST /sapi/v1/simple-earn/flexible/redeem<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#redeem-flexible-product-trade}
+   *
+   * @param {string} productId
+   * @param {object} options
+   * @param {boolean} [options.redeemAll] // true or false, default to false
+   * @param {number} [options.amount] // if redeemAll is false, amount is mandatory
+   * @param {string} [options.destAccount]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  redeemFlexibleProduct (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/flexible/redeem',
+      Object.assign(options, { productId })
+    )
+  }
+
+  /**
+   * Redeem Locked Product (TRADE)<br>
+   *
+   * POST /sapi/v1/simple-earn/locked/redeem<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#redeem-locked-product-trade}
+   *
+   * @param {string} productId
+   * @param {object} options
+   * @param {number} [options.recvWindow]
+   *
+   */
+  redeemLockedProduct (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/locked/redeem',
+      Object.assign(options, { productId })
+    )
+  }
+
+  /**
+   * Get Flexible Product Position (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/position<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-product-position-user_data}
+   *
+   *
+   * @param {object} options
+   * @param {string} [options.asset]
+   * @param {string} [options.productId]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleProductPosition (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/position',
+      options
+    )
+  }
+
+  /**
+   * Get Locked Product Position (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/position<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-product-position-user_data}
+   *
+   *
+   * @param {object} options
+   * @param {string} [options.asset]
+   * @param {string} [options.productId]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedProductPosition (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/position',
+      options
+    )
+  }
+
+  /**
+   * Get Simple Account (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/account<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-simple-account-user_data}
+   *
+   * @param {object} options
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getSimpleAccount (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/account',
+      options
+    )
+  }
+
+  /**
+   * Get Flexible Subscription Record (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/history/subscriptionRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-subscription-record-user_data}
+   *
+   * @param {object} options
+   * @param {string} [options.productId]
+   * @param {string} [options.purchaseId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleSubscriptionRecord (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/history/subscriptionRecord',
+      options
+    )
+  }
+
+  /**
+   * Get Locked Subscription Record (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/history/subscriptionRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-subscription-record-user_data}
+   *
+   * @param {object} options
+   * @param {string} [options.purchaseId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedSubscriptionRecord (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/history/subscriptionRecord',
+      options
+    )
+  }
+
+  /**
+   * Get Flexible Redemption Record (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/history/redemptionRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-redemption-record-user_data}
+   *
+   * @param {object} options
+   * @param {string} [options.productId]
+   * @param {string} [options.redeemId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleRedemptionRecord (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/history/redemptionRecord',
+      options
+    )
+  }
+
+  /**
+   * Get Locked Redemption Record (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/history/redemptionRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-redemption-record-user_data}
+   *
+   * @param {object} options
+   * @param {string} [options.redeemId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedRedemptionRecord (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/history/redemptionRecord',
+      options
+    )
+  }
+
+  /**
+   * Get Flexible Rewards History (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/history/rewardsRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-rewards-history-user_data}
+   *
+   * @param {object} options
+   * @param {string} type
+   * @param {string} [options.productId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleRewardsRecord (type, options = {}) {
+    validateRequiredParameters({ type })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/history/rewardsRecord',
+      Object.assign(options, { type })
+    )
+  }
+
+  /**
+   * Get Locked Rewards History (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/history/rewardsRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-rewards-history-user_data}
+   *
+   * @param {object} options
+   * @param {string} [options.positionId]
+   * @param {string} [options.asset]
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedRewardsRecord (options = {}) {
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/history/rewardsRecord',
+      options
+    )
+  }
+
+  /**
+   * Set Flexible Auto Subscribe (USER_DATA)<br>
+   *
+   * POST /sapi/v1/simple-earn/flexible/setAutoSubscribe<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#set-flexible-auto-subscribe-user_data}
+   *
+   * @param {string} productId
+   * @param {boolean} autoSubscribe
+   * @param {object} [options]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  setFlexibleAutoSubscribe (productId, autoSubscribe, options = {}) {
+    validateRequiredParameters({ productId, autoSubscribe })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/flexible/setAutoSubscribe',
+      Object.assign(options, { productId, autoSubscribe })
+    )
+  }
+
+  /**
+   * Set Locked Auto Subscribe (USER_DATA)<br>
+   *
+   * POST /sapi/v1/simple-earn/locked/setAutoSubscribe<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#set-locked-auto-subscribe-user_data}
+   *
+   * @param {string} productId
+   * @param {boolean} autoSubscribe
+   * @param {object} [options]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  setLockedAutoSubscribe (productId, autoSubscribe, options = {}) {
+    validateRequiredParameters({ productId, autoSubscribe })
+    return this.signRequest(
+      'POST',
+      '/sapi/v1/simple-earn/locked/setAutoSubscribe',
+      Object.assign(options, { productId, autoSubscribe })
+    )
+  }
+
+  /**
+   * Get Flexible Personal Left Quota (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/personalLeftQuota<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-personal-left-quota-user_data}
+   *
+   * @param {string} productId
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexiblePersonalLeftQuota (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/personalLeftQuota',
+      Object.assign(options, { productId })
+    )
+  }
+
+  /**
+   * Get Locked Personal Left Quota (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/personalLeftQuota<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-personal-left-quota-user_data}
+   *
+   * @param {string} productId
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedPersonalLeftQuota (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/personalLeftQuota',
+      Object.assign(options, { productId })
+    )
+  }
+
+  /**
+   * Get Flexible Subscription Preview (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/subscriptionPreview<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-flexible-subscription-preview-user_data}
+   *
+   * @param {string} productId
+   * @param {number} amount
+   * @param {object} [options]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getFlexibleSubscriptionPreview (productId, amount, options = {}) {
+    validateRequiredParameters({ productId, amount })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/subscriptionPreview',
+      Object.assign(options, { productId, amount })
+    )
+  }
+
+  /**
+   * Get Locked Subscription Preview (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/locked/subscriptionPreview<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-locked-subscription-preview-user_data}
+   *
+   * @param {string} productId
+   * @param {number} amount
+   * @param {object} [options]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getLockedSubscriptionPreview (productId, amount, options = {}) {
+    validateRequiredParameters({ productId, amount })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/locked/subscriptionPreview',
+      Object.assign(options, { productId, amount })
+    )
+  }
+
+  /**
+   * Get Rate History (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/history/rateHistory<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-rate-history-user_data}
+   *
+   * @param {string} productId
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getRateHistory (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/history/rateHistory',
+      Object.assign(options, { productId })
+    )
+  }
+
+  /**
+   * Get Collateral Record (USER_DATA)<br>
+   *
+   * GET /sapi/v1/simple-earn/flexible/history/collateralRecord<br>
+   *
+   * {@link https://binance-docs.github.io/apidocs/spot/en/#get-collateral-record-user_data}
+   *
+   * @param {string} productId
+   * @param {number} [options.startTime]
+   * @param {number} [options.endTime]
+   * @param {number} [options.current]
+   * @param {number} [options.size]
+   * @param {number} [options.recvWindow]
+   *
+   */
+  getCollateralRecord (productId, options = {}) {
+    validateRequiredParameters({ productId })
+    return this.signRequest(
+      'GET',
+      '/sapi/v1/simple-earn/flexible/history/collateralRecord',
+      Object.assign(options, { productId })
+    )
+  }
+}
+module.exports = SimpleEarn