Intercept and Modification Providers

All frontend interfaces provided by FineBI 6.0 are exposed in the form of providers. Intercept and modification providers are used to customize the encryption/decryption methods and request hooks inside BI.

`bi.provider.cipher`

Customize the encryption/decryption methods used in scenarios where BI requires encryption or decryption. Currently this applies when editing SQL datasets — the SQL statements are encrypted/decrypted based on the value of the global variable BI.transmissionEncryption, which determines whether AES encryption or national cryptography (SM) is used.

Method	Signature	Description
`encrypt`	`encrypt(fn: (pwd: string) => string)`	Customize the encryption method
`decrypt`	`decrypt(fn: (pwd: string) => string)`	Customize the decryption method

BI.config('bi.provider.cipher', (provider) => {
    provider.encrypt((str) => myEncodeFunc(str))
});
BI.config('bi.provider.cipher', (provider) => {
    provider.decrypt((str) => myDecodeFunc(str))
});

`bi.provider.base.req`

Provides hooks for before-request, request-success, request-complete, and request-failure events.

Method	Signature	Description
`reqBefore`	`reqBefore(fn: (config: any) => newConfig)`	Before-request hook
`reqAfterSuccess`	`reqAfterSuccess(fn: (res: any) => void)`	Request-success hook
`reqAfterComplete`	`reqAfterComplete(fn: (res: any) => void)`	Request-complete hook
`reqAfterFail`	`reqAfterFail(fn: (res: any) => void)`	Request-failure hook

BI.config('bi.provider.base.req', (provider) => {
    provider.reqBefore((options) => {
        console.log('before request');
        return options;
    });
})
BI.config('bi.provider.base.req', (provider) => {
    provider.reqAfterSuccess((res) => {
        console.log('request succeeded: ' + res.data);
    });
})
BI.config('bi.provider.base.req', (provider) => {
    provider.reqAfterComplete((res) => {
        console.log('request completed: ' + res.data);
    });
})
BI.config('bi.provider.base.req', (provider) => {
    provider.reqAfterFail((res) => {
        console.log('request failed: ' + res.errorCode);
    });
})

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