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package mtnmomo |
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import ( |
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"context" |
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"encoding/json" |
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"net/http" |
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"time" |
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) |
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// collectionService is the API client for the `/collection` endpoint |
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type collectionService service |
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// Token is used to create an access token which can then be used to authorize and authenticate towards the other end-points of the API. |
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// |
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// API Docs: https://momodeveloper.mtn.com/docs/services/collection/operations/token-POST |
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func (service *collectionService) Token(ctx context.Context) (*AuthToken, *Response, error) { |
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request, err := service.client.newRequest(ctx, http.MethodPost, "/collection/token/", nil) |
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if err != nil { |
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return nil, nil, err |
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} |
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service.client.addBasicAuth(request) |
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response, err := service.client.do(request) |
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if err != nil { |
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return nil, nil, err |
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} |
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authToken := new(AuthToken) |
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if err = json.Unmarshal(*response.Body, authToken); err != nil { |
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return nil, response, err |
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} |
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return authToken, response, err |
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} |
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// RequestToPay is used to request a payment from a consumer (Payer). |
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// |
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// API Docs: https://momodeveloper.mtn.com/docs/services/collection/operations/requesttopay-POST |
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func (service *collectionService) RequestToPay( |
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ctx context.Context, |
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referenceID string, |
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params *RequestToPayParams, |
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callbackURL *string, |
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) (*Response, error) { |
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err := service.refreshToken(ctx) |
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if err != nil { |
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return nil, err |
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} |
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request, err := service.client.newRequest(ctx, http.MethodPost, "/collection/v1_0/requesttopay", params) |
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if err != nil { |
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return nil, err |
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} |
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if callbackURL != nil && len(*callbackURL) != 0 { |
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service.client.addCallbackURL(request, *callbackURL) |
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} |
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service.client.addTargetEnvironment(request) |
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service.client.addReferenceID(request, referenceID) |
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service.client.addCollectionAccessToken(request) |
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response, err := service.client.do(request) |
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return response, err |
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} |
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func (service *collectionService) tokenIsValid() bool { |
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return time.Now().UTC().Unix() < service.client.collectionAccessTokenExpiresAt |
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} |
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func (service *collectionService) refreshToken(ctx context.Context) error { |
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service.client.collectionLock.Lock() |
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defer service.client.collectionLock.Unlock() |
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if service.tokenIsValid() { |
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return nil |
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} |
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token, _, err := service.Token(ctx) |
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if err != nil { |
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return err |
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} |
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service.client.collectionAccessToken = token.AccessToken |
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service.client.collectionAccessTokenExpiresAt = time.Now().UTC().Unix() + token.ExpiresIn - 100 |
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return nil |
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} |
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NdoleStudio /
mtnmomo-go
